Cedar Siding & Shingles in South Portland, Maine

South Portland has about 12,800 housing units, and the American Community Survey estimates a median year built of 1968, two decades newer than Portland across the harbor. About 25 percent of homes predate 1940 and about 45 percent predate 1960. Roughly 16 percent went up between 1960 and 1979, and close to 19 percent date from 2000 or later, a larger share of newer construction than on the peninsula. Owners occupy about 58 percent of occupied homes, and single-family detached houses make up a little over half the stock, with apartments, condominiums and two-family houses filling out the rest. Seasonal homes are rare, only about 100 units. The older waterfront villages hold the city's early wood-frame houses, while the neighborhoods farther inland are largely post-war and later.

South Portland faces Portland Harbor and the Fore River on its north side and Casco Bay to the east, so houses in Ferry Village, Willard and the streets near Spring Point take salt air and onshore wind, while western neighborhoods near the Maine Mall are more sheltered. The city shares its weather with the Portland International Jetport, whose main runway lies inside South Portland, and the Portland area averages about 69 inches of snow a year, with some winters far lighter or heavier. Nor'easters drive rain and snow sideways against exposed walls, and repeated freeze and thaw loosens caulk, paint and shingles. Near the water, salt speeds corrosion of flashing and fasteners.

Building permits in South Portland come from Code Enforcement, part of the Department of Planning and Development, which issues permits and conducts inspections for building, electrical and plumbing work. Applications can go through the city's online portal or by email. The city enforces the Maine Uniform Building and Energy Code, based on the 2021 International Residential Code, and a permitted project must make a substantial start within 180 days. Since 2019, a building permit for exterior work on a designated historic property or any structure built in 1940 or earlier may be delayed up to 90 days. Shoreland zoning applies along the harbor and bay.

Cedar clapboards and shingles are the original New England exterior, and for shingle-style cottages, capes and historic homes nothing else looks quite right. Cedar is naturally rot-resistant and light, but it is wood: it needs airflow behind it and a finish that suits the exposure. Pre-finished shingles, such as the Maibec shingles on several projects shown on this site, arrive stained or primed on all sides, which cuts the upkeep and evens out the color.

• Walls are stripped, repaired and wrapped; where it helps drying, a ventilated or drainage layer goes behind the cedar.
• Shingles are coursed and laid out so exposure lines up at windows, doors and corners.
• Stainless or hot-dipped galvanized fasteners are used so they do not stain or corrode.
• Corners are woven or finished with boards, and trim is detailed to shed water.
• Pre-finished product is touched up at cuts; natural cedar is left to weather or finished as you choose.

• The house is a cape, shingle-style cottage or historic home where cedar belongs
• Existing shingles are cupped, split, missing or black with mildew
• A historic district or your own taste calls for real wood
• You want a natural finish that weathers to silver-gray

• Clapboard versus shingle, and grade of cedar
• Pre-finished versus natural or site-finished
• Coursing detail, corner treatment and trim
• Wall area, height and tear-off
• Any rainscreen or drainage layer behind the siding

Every job is priced from a free on-site visit. Typical ranges for the trade are on our siding page, and the details of this service are on the cedar siding and shingles overview.

For a deeper walkthrough of materials, code details and photos, see our full Cedar Siding & Shingles: A Traditional Maine Look That Needs the Right Prep Underneath guide.

Back to the South Portland exterior services overview, or see every town on our service areas page.